Diallyl maleate
Also known as: di(prop-2-en-1-yl) (2Z)-but-2-enedioate, (Z)-2-butenedioic acid di-2-propenyl ester, di-2-propen-1-yl (2Z)-2-butenedioate, Maleic acid diallyl ester, Diallyl (2Z)-2-butenedioate
Diallyl maleate (CAS 999-21-3) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C10H12O4 and a molecular weight of 196.200 g/mol. Key properties include a melting point of −47 °C(lit.), a boiling point of 263.7±20.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 124.6±20.2 °C. It is classified under GHS with signal word Danger and hazard statements H301 — Toxic if swallowed, H312 — Harmful in contact with skin and H315 — Causes skin irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 999-21-3
- Jingsj CID
- J-33060-9
- Molecular Formula
- C10H12O4
- Molecular Weight
- 196.200 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | −47 °C(lit.) |
|---|---|
| Boiling Point | 263.7±20.0 °C at 760 mmHg |
| Density | 1.1±0.1 g/cm3 |
| Flash Point | 124.6±20.2 °C |
| Exact Mass | 196.073563 |
| PSA | 52.60000 |
| LogP | 2.13 |
| Additional Property | 6.6 (vs air) |
| Vapor Pressure | 0.0±0.5 mmHg at 25°C |
| Refractive Index | 1.470 |
GHS Safety & Compliance
- H301 — Toxic if swallowed
- H312 — Harmful in contact with skin
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
Customs & Trade Information
| HS Code | 2917190090 |
|---|---|
| Summary | 2917190090 acyclic polycarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of Diallyl maleate?
The CAS number of Diallyl maleate is 999-21-3.
What are the molecular formula and molecular weight of Diallyl maleate?
Diallyl maleate has molecular formula C10H12O4 and molecular weight 196.200 g/mol.
Is Diallyl maleate hazardous?
Diallyl maleate has GHS signal word Danger and hazard statements H301 — Toxic if swallowed; H312 — Harmful in contact with skin; H315 — Causes skin irritation.
What are the upstream and downstream products of Diallyl maleate?
For Diallyl maleate, Upstream Products: Allyl bromide, Maleic anhydride, Allyl chloride; Downstream Products: Dipropyl succinate.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Diallyl maleate (CAS 999-21-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-33060-9 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.